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Syllabus

Introduction

Chemistry 102 laboratory provides students with the opportunity to become familiar with basic scientific techniques such as spectroscopy, titration and separation while using observation and measurement to verify scientific principles. This one credit hour laboratory course accompanies Chemistry 101 - Chemistry: A Molecular Science (CAMS). CH 102 is a separate course, for which students receive a separate grade. In the lecture course, mathematical calculations are held to a minimum while concepts and trends are emphasized. In the laboratory course, we will follow this same philosophy as much as possible, but more calculations will inevitably be utilized in order to demonstrate the concepts and trends. Although the topics covered in this course follow the same general order as the CH 101 textbook, this lab course is not meant to follow the lecture course on a day-by-day basis. It is also not just a supplement to the lecture. Please consult your lab manual and the lab website often for additional information on the topics covered in lab.

Course Materials

Course Websites

Corequisite

CH 101: This is the General Chemistry 1 lecture course. Students are required to register for CH 101 and CH 102 in the same semester. If extenuating circumstances exist, please email the Lab Director, Dr. Lori Petrovich at LMPETROV@NCSU.EDU.

Learning Objectives

Upon successful completion of this course, the student will be able to:

Experiments

The following experiments are typically performed in CH102. Specific dates may be found in Moodle.
  • Lab 1: Moles, Mass and Volume
  • Lab 2: Emission and Absorption
  • Lab 3: Solubility Rules
  • Lab 4: Qualitative Analysis
  • Lab 5: Molecular Geometry
  • Lab 6: Solid State Modeling
  • Lab 7: Measuring Enthalpy Changes and Gas Laws
  • Lab 8: Equilibrium and Le Châtelier's Principle
  • Lab 9: Titration
  • Lab 10: Acid-Base Studies
  • Lab 11: Redox Reactions

Contacts

The assigned TA is a student's first resource for any course issues. TA names and email address can be found at the CH102 course Webpage at http://wolfware.ncsu.edu. Please attempt to contact your TA first, in the event of lab absences and in-lab, prelab, or postlab questions. Occasionally students may experience difficult technical issues, emergencies or extraordinary circumstances which cannot be resolved by a TA. In that case, please contact the following personnel for assistance:

Lab Director

  • Dr. Lori Petrovich
  • 248 FOX
  • (919) 513-4877
  • LMPETROV@NCSU.EDU

Lab Supervisor

  • Ms. Marcie L. Belisle
  • 228 FOX
  • (919) 513-2964
  • MLBELISLE@NCSU.EDU

Grading

Each lab is composed of a prelab (25 points), in-lab (50 points) and postlab (25 points). There is also a final exam (100 points). The typical semester grading components are shown below. The grading scale is shown below with grades rounded to the nearest 0.01%.

Disability Resource Office

Students with disabilities who are currently registered with the DRO office should ensure their accommodations are activated for the lab course. Documentation from DRO is sent directly to the Lab Director, who is able to adjust testing times based upon that documentation. The Lab Director implements time adjustments for the final exam upon receipt of the DRO documentation. Students with other concerns kindly email the Lab Director regarding the issue.

Supporting Fellow Students in Distress:

As members of the NC State Wolfpack community, we each share a personal responsibility to express concern for one another and to ensure that this classroom and the campus as a whole remains a healthy and safe environment for learning. Occasionally, students may come across a fellow classmate whose personal behavior is concerning or worrisome, either for the classmate's well-being or oneself. When this is the case, students are encouraged to report this behavior to the NC State's Students of Concern website https://prevention.dasa.ncsu.edu/nc-state-cares/about/. Although students can report anonymously, it is preferred that students share your contact information so the office can follow-up if needed.

Pack Essentials Program:

The Pack Essentials program offers great resources for NC State students facing unexpected hardships such as financial, food, or housing insecurity: https://dasa.ncsu.edu/pack-essentials/. According to a recent survey of NC State students, 4% of our students were food insecure in the month prior to the survey and almost 10% had experienced housing insecurity in the past year. Students can also reach out to the Student Ombuds (https://ombuds.dasa.ncsu.edu/) for assistance in these and other areas.

In-Person Class Policies

Section Information

Finding your section of CH 102 is important. Check your registration information in MyPack a day or two before your first lab. Write down the section number, room number, and instructor's name, and bring them to lab. Once in lab, make sure you are in the right place. Also, make sure you are on the official roll for the section.

Safety and Risk Assumption

Participation in chemistry laboratory courses carries an inherent risk. Students will carry out procedures where they may encounter certain hazards related to the chemicals and equipment associated with laboratory experiments. The risk from these hazards can be minimized by compliance with the laboratory safety rules. Students are required to complete a safety compliance agreement prior to participating in this course. A form will be available at your first lab period.

Attendance

It is expected that students attend laboratory during their assigned section each week. Students should be present for the prelab presentation by the laboratory instructor so plan for timely arrival. Students who are more than 10 minutes late for lab will have an unexcused absence for the laboratory session.

Absences

Excused absences: The University requires that absences due to illness, certain university-sponsored activities, deaths in one's immediate family, and court appearances be excused. Your instructor will require documentation for any of these. The Division of Academic and Student Affairs can assist students with documentation. Please visit http://dasa.ncsu.edu/students/absence-verification-process/. If a student knows they must miss a lab they should contact the instructor as soon as possible. If a student misses a lab due to illness or other unforeseen circumstances, they must contact the instructor within 24 hours or the absence will not be excused. Instructor contact information and procedures for addressing excused absences are available in Moodle. Unexcused absences: Unexcused absences include tardiness, dismissal for safety violations (refusal to wear eye protection, improper attire, disruptive behavior) and dismissal for failure to complete prelab preparations (WebAssign and notebook preparation). Unexcused absences will result in the loss of all in-lab assignment points, for a score of 0/50. Consequences of absence Excused: Unexcused:

Adverse Weather Policy

In adverse weather, if the University closes, laboratory classes are cancelled. If the University has announced that it is operating under the Adverse Weather Policy, labs are cancelled. In the event of one lab cancellation, the student's in-lab grade may be composed of one less in-lab assignment or sample data/videos may be provided. However, students are responsible for the prelab and postlab WebAssign exercises. In the event of two or more lab cancellations, the lab schedule may be altered such that students are required to attend lab during a previously unscheduled week at their usual lab section time. If this is not possible because of a university holiday, the students may be required to independently perform a simulated lab assignment outside of the lab period.

Assignments

Each experiment, except the first, has three WebAssign exercises, a Prelab (25 points), an In-lab (50 points), and a Postlab (25 points). The first lab has a Syllabus Quiz in lieu of the prelab. Therefore, the total point value for each experiment is 100 points Syllabus quiz: An assignment to check your knowledge of course rules. Prelabs: Assignments that prepare you for the lab experiments. Webassign Prelab: The prelab exercises are an important part of your preparation for the laboratory. The first two questions will cover safety and waste disposal information, and you must answer them correctly to be admitted to lab. Students who do not complete their WebAssign prelab must have their instructor check the answers on their written prelab before proceeding with lab experiments. Written Prelab: In-Labs: Assignments you should try to complete during your lab period. The In-Lab exercises cover the same material as your Data Tables and In-Lab Questions, and allow your work to be graded automatically. The last question is worth 15 points and requires a short essay detailing experimental observations and/or calculations. TAs may adjust these points due to incorrect answers or issues during the lab period. Be sure to followed the rules about safety glasses and attire, perform all elements of the experiment to the best of your ability and clean up your workstation when finished to avoid any reduction of points. Postlabs: Assignments that are essentially lab reports.

Late WebAssign Prelab and Postlab Assignments:

Students with university-accepted documentation may receive extensions on prelab and postlab assignments. Students without documentation may have one full point extension per semester. Additional extensions can cost 10 points per assignment. Excessive extensions are not allowed.

Honor Code

Duplication of another person's lab assignment is academic dishonesty and will be treated as such. This includes getting data from another student before performing the lab, typing unauthorized lab data into WebAssign from a non-lab location, looking up information from cheating websites and entering it into WebAssign. Students are expected to perform all elements of the experiment, collect their own data and input that data and any subsequent calculations/observations into WebAssign. The grade for an experiment in which academic dishonesty has occurred is recorded as a zero and reported in a manner consistent with the University's policy on academic dishonesty. The University's Code of Student Conduct can be found at http://policies.ncsu.edu/policy/pol-11-35-01. All members of the University community: students, faculty, and staff, share the responsibility and authority to challenge and make known to the appropriate authority acts of apparent academic dishonesty.

Each Week When You Come to Lab

Check-In

During check-in for your CH 102 lab, the following things will happen. Make sure you pay attention, some of them are very important.
  • 1
    Roll will be taken. Make sure you are in the right section, or your work will go to two different instructors. One will get your lab work and the other will see your WebAssign work. If you are not sure you are in the right place, check with your instructor or the lab coordinator. Once you are in a section, do not switch out of it without the permission of the lab coordinator. If you do, you risk having some of your grades lost.
  • 2
    You will be issued safety glasses. Safety glasses are to be worn at all times while you are in lab, over your regular glasses if you wear them. Wearing contact lenses in the lab is strongly discouraged. If you wear them, you will be asked to sign a waiver stating that you understand the dangers in doing so, and will not hold the university liable if you are injured as a result of wearing contact lenses in the lab.
  • 3
    You will be shown the location of safety devices and how to operate them. These devices will include eyewashes, safety showers, drench hoses, and fire extinguishers. Safety policies in the lab will be explained, and you will be asked to sign a form saying you understand the rules and agree to abide by them.
  • 4
    You will be shown the evacuation route for a fire. Make sure you understand how to exit the building safely. In a fire evacuation, it is important to get well away from the building.
  • 5
    You will be asked to fill out a Medical Information Form in WebAssign. This form lists chronic medical conditions, medicines you are taking, and who to contact in an emergency. This form will remain private, and will not be viewed unless you are injured or ill in the lab and unable to provide information for yourself.
  • 6
    Policies regarding grading and attendance will be explained. Make sure you pay attention, as your instructor may have specific policies for the sections he/she teaches, e.g. point penalties if you leave your workspace a mess, or your lab work is illegible.

Online Class Policies

General Operation:

Online CH102 labs are conducted semi-asynchronously. To keep students on-pace and distribute TA resources, the WebAssign in-lab assignments will be available one day per week from 8AM to 11PM (EST) depending on the section schedule posted in Moodle. Students wishing to work ahead on in-lab assignments are welcome to do so. Each Moodle block contains links to the lab videos and a data collection worksheet which students may use to record their data before entry into WebAssign. Students are highly encouraged to zoom meet with a lab TA during their scheduled lab period in MyPack for assistance with completing the in-lab assignment and to connect with other students in the lab (or lecture) class. To maintain the 'in-person' aspect of lab work, at the end of each in-lab assignment students will be asked to complete a short essay on the lab techniques and safety concerns observed in the lab video.

Assignments

Each experiment has three WebAssign exercises, a Prelab (25 points), an In-lab (50 points), and a Postlab (25 points). The first lab has a Syllabus Quiz in lieu of the prelab. Therefore, the total point value for each experiment is 100 points. Prelabs: Assignments that prepare you for the lab experiments. In-Labs: Assignments you should try to complete on your scheduled lab day by 11:00 PM using the data and observations presented in the lab videos linked from the Moodle lab website. The In-Lab exercises cover the same material as your Data Tables and In-Lab Questions, and allow your work to be graded automatically. Postlabs: Assignments that are essentially lab reports.

Late WebAssign Assignments

Excused: Students with university-accepted documentation may receive full-credit extensions on lab assignments. The Division of Academic and Student Affairs can assist students with documentation. Please visit http://dasa.ncsu.edu/students/absence-verification-process/. Unexcused: Students who miss a lab assignment should contact their TA the next day before 5:00 pm (EST) to request an extension at 95% credit. After a second day, extension is at 90% credit. After the third day, extension is at 75% credit. There will be no extensions four days after the assignment due date. Please manage your time wisely as studying for a test in another class, writing a paper, or losing internet connectivity are not excused reasons for a full-credit extension.

Honor Code

Duplication of another person's lab assignment is academic dishonesty and will be treated as such. This includes getting calculated values or data from another student or looking up information from cheating websites and entering it into WebAssign. The data for each lab is available in the videos linked in Moodle. Please use that data or the data provided by your TA. The grade for an experiment in which academic dishonesty has occurred is recorded as a zero and reported in a manner consistent with the University's policy on academic dishonesty. The University's Code of Student Conduct can be found at http://policies.ncsu.edu/policy/pol-11-35-01. All members of the University community: students, faculty, and staff, share the responsibility and authority to challenge and make known to the appropriate authority acts of apparent academic dishonesty.